Possible Evolutionary Transition from Rapidly Rotating Neutron Stars to Strange Stars Due to Spin-Down(Astrophysics and Relativity)
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概要
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We present a scenario for the formation of strange stars due to spin-down of rapidly rotating neutron stars left after supernova explosions. In this scenario the rapid rotation plays a crucial role. We assume that the total baryon mass is conserved but that both total energy and angular momentum are lost due to emission of gravitational waves and/or magnetic braking. Under this assumption, we calculate the transition from rapidly rotating neutron stars to slowly rotating strange stars. As a result, we find that a large amount of energy, 〜10^<53>, ergs is released. The liberated energy might become a new energy source for the delayed explosion of a supernova. Furthermore, our scenario suggests that supernovas associated with gamma-ray bursts are feasible sources of observable gravitational waves.
- 理論物理学刊行会の論文
- 2005-05-25
著者
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Hashimoto Masaaki
Department of Mechanical Engineering, Kyushu University
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ERIGUCHI Yoshiharu
Department of Earth Science and Astronomy College of General Education, University of Tokyo
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Hashimoto Masa-aki
Department Of Earth Science And Astronomy College Of Arts And Sciences University Of Tokyo
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Eriguchi Yoshiharu
Department Of Earth Science And Astronomy College Of General Education University Of Tokyo
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Yoshiharu Eriguchi
Department Of Earth Science And Astronomy Graduate School Of Arts And Sciences University Of Tokyo
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YASUTAKE Nobutoshi
Department of Physics, Kyushu University
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Yasutake Nobutoshi
National Astronomical Observatory Of Japan Mitaka Jpn
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Hashimoto Masaaki
Department Of Physics Kyushu University
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ERIGUCHI Yoshiharu
Department of Earth Science and Astronomy, Graduate School of Arts and Sciences, University of Tokyo
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